diff options
| -rw-r--r-- | tools/include/nolibc/nolibc.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h index 3115c6467d10..5fda4d844054 100644 --- a/tools/include/nolibc/nolibc.h +++ b/tools/include/nolibc/nolibc.h @@ -1502,10 +1502,22 @@ int sys_dup(int fd) return my_syscall1(__NR_dup, fd); } +#ifdef __NR_dup3 +static __attribute__((unused)) +int sys_dup3(int old, int new, int flags) +{ + return my_syscall3(__NR_dup3, old, new, flags); +} +#endif + static __attribute__((unused)) int sys_dup2(int old, int new) { +#ifdef __NR_dup3 + return my_syscall3(__NR_dup3, old, new, 0); +#else return my_syscall2(__NR_dup2, old, new); +#endif } static __attribute__((unused)) @@ -1876,6 +1888,20 @@ int dup2(int old, int new) return ret; } +#ifdef __NR_dup3 +static __attribute__((unused)) +int dup3(int old, int new, int flags) +{ + int ret = sys_dup3(old, new, flags); + + if (ret < 0) { + SET_ERRNO(-ret); + ret = -1; + } + return ret; +} +#endif + static __attribute__((unused)) int execve(const char *filename, char *const argv[], char *const envp[]) { |